Local MTB club threatening to post videos of people riding through wet trails

Local MTB club is threatening to put up cameras to capture riders riding on wet trails. For those of you that aren’t in the MTB community, in Australia, riding on wet trails is very much (and rightly so) frowned upon as it damages the hard work put in by the trail builders.

Now my local MTB club contributes a lot to the maintenance of the trails and has threatened to put up cameras with the view to deliberately filming people doing the wrong thing and then posting the footage online and publicly shaming people. As I said, I agree with the fact that people shouldn’t be riding the trails as it’s really not cool, but publicly outing people on the internet? Seems a bit like trial by social media if you ask me.

My question is, can they do this legally? Do people have a right of recourse in any way if this MTB club were to post identifiable footage?

I should also add, that they have done this before. So I’m quite sure they’ll follow through with their threats.

Edit: - MTB is mountain bike. - Trails are in a State Forest so publicly accessible land.